When you're working on a heavy scene with lots of objects, you probably find difficulties selecting the ones you want. However, if you keep your scene organized and your objects correctly named, you'll be able to select them from a list in the viewport, making it way easier to select the wanted object.
- Press Alt+RMB on top of objects in the 3D View.
- This will display a list of the objects that are behind the mouse cursor.
- It's very important that you keep your objects organized and named, otherwise, this method won't be really useful.